How many protons neutrons and electrons are there in a neutral atom of 43k (potassium-43)?

There are 19 protons, 24 neutrons and 19 electrons in a neutral atom of 43K.

COMPONENTS OF AN ATOM:

An atom consists of three subatomic particles namely: neutron, proton and electrons. In a neutral atom i.e. an atom with a charge of 0, the number of protons also known as the atomic number, is the same as the number of electrons. The number of neutrons in an atom is calculated by subtracting the number of protons from the mass number. That is; no. of neutrons = mass no. - no. of protons (atomic number). In this question, the mass number of potassium is given as 43 and the atomic number is known to be 19. Since the potassium atom is neutral, hence, the number of protons and electrons is equally 19.

No. of neutrons in the potassium atom is 43 - 19 = 24 neutrons.

Therefore, there are 19 protons, 24 neutrons and 19 electrons in a neutral atom of 43K.

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